Ant-Man, Heroic Thief

When Ant-Man attacks you may choose one of these options until end of turn:
• Shrink — {2}{r} This creature is unblockable.
• Enlarge — {4}{g} this creature gains +6/+6, trample, and reach.

Time Heist — when this creature dies search your library for a card titled Time Heist and cast it without paying its mana cost.